Intermediate (B1)
IPA: /nɒnˈθɪŋkɪŋ/
KK: /nɑnˈθɪŋkɪŋ/
Definition
Describing actions or behaviors that are done without thinking or consideration.
Example
His nonthinking response to the question surprised everyone in the room.
Comparatives & Superlatives
Comparative: more nonthinking
Superlative: most nonthinking
Conversation

I can't believe you made that nonthinking decision again!

I know, I really should have thought it through more.

Sometimes I feel like you're too nonthinking when it comes to big choices.

You're right; I need to start being more careful.
Synonyms & Antonyms
Synonyms
unreflective
thoughtless
impulsive
Antonyms
considerate
thoughtful
deliberate
Definition
The state of not thinking or being unable to think clearly.
Example
His nonthinking during the exam led to many mistakes.
Conversation

Sometimes I just enjoy moments of nonthinking while watching the clouds.

That sounds nice! It's good to take a break from constant thoughts.

Yeah, we all need a little nonthinking time to recharge.
Root Explanation
Nonthinking → It is formed from "non-" (meaning not) and "thinking" (from Old English "þencan", meaning to think). The word "nonthinking" describes a state of not engaging in thought or reflection.
Memory Tip
Think of 'not' ('non-') combined with 'thinking' — this helps you remember that nonthinking means a lack of thought.
Visually Confused Words
nonshrinking
unthinking
thinking
nonstriking
nonstaining
nondrinking
thinkling